Splenopentin diacetate is a synthetic immunomodulating peptide and can reproduce the biological activities of splenin and thymic hormone thymopoietin.

Morphine Modulating Peptide, C-Terminal Fragment

Litorin, an amphibian bombesin peptide derivative, is an bombesin receptor agonist. Litorin stimulates the contraction of smooth muscle, stimulates gastrin, gastric acid, and pancreatic secretion, and suppresses the nutriment in vivo.